cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A082582 Expansion of (1 + x^2 - sqrt( 1 - 4*x + 2*x^2 + x^4)) / (2*x) in powers of x.

Table of values

n a(n)
0 1
1 1
2 1
3 2
4 5
5 13
6 35
7 97
8 275
9 794
10 2327
11 6905
12 20705
13 62642
14 190987
15 586219
16 1810011
17 5617914
18 17518463
19 54857506
20 172431935
21 543861219
22 1720737981
23 5459867166
24 17369553427
25 55391735455
26 177040109419
27 567019562429
28 1819536774089

List of values

[1, 1, 1, 2, 5, 13, 35, 97, 275, 794, 2327, 6905, 20705, 62642, 190987, 586219, 1810011, 5617914, 17518463, 54857506, 172431935, 543861219, 1720737981, 5459867166, 17369553427, 55391735455, 177040109419, 567019562429, 1819536774089]